Samuel m



S. M. HERBER. PILLOW BLOOK.

7 for f a 111ml 5;.

Patented May 14 1889 wlll I llllllllllllllllllllIIH'H1 IIIIIIIIII'I M Itn ll-I (No Model.)

UNITED STATES ATENT OFFICE.

SAMUEL M. HERBER, OF LINCOLN, ILLINOIS, ASSIGNOR TO THEODORE R.

PEIFER, OF SAME PLACE.

BLOCK.

SPECIFICATION forming part of Letters Patent No. 403,471, dated May 14,1889.

Application filed September 2 1888- Serial No. 286,262. (No model.)

To aZZ whom it may concern:

Be it known that I, SAMUEL M. HERBER, a citizen of the United States,residing at Lincoln, in the county of Logan and State of Illinois, haveinvented a new and useful Pillow- Block and Main Box or Bearing on anEngine, of which the following is a specification.

My invention relates to an improvement in pillow-blocks and journal-boxes, and more especially to that peculiar class of journalboxesin which keys act, in conjunction with the pillow-block andbox-sections, for the purpose of adjusting and holding said sections inposition. The object of the invention is to provide a journal-boxprovided with improved means for easily and accurately adjusting theboxsections to fit the shaft, and to form a continuous bearing for theshaft which will not brush or scrape the oil off the same.

The objects are accomplished by and my invention consists in certainnovel features of construction and combinations of parts more fullydescribed hereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a side elevation ofmy pillowblock, showing the manner of securing the journal-boxesthereto. Fig. 2 illustrates a top plan view of the boxes, showing theintersecting joints. Fig. 3 is a side elevation of the cap-adjustingwedges, tightening-plate, and means for securing the same. Fig. 4 is abroken sectional detail View of one of the journal-boxes, clearlyshowing the depressions and projections. Fig. 5 is an end view of thepillow-block, showing the upwardly-projecting link or loop. Fig. 6 is aperspective View of the pillow-block complete; and Fig. 7 is a 0vertical transverse section taken on the line a: x of Fig. 2.

In the drawings, the reference-letter a indicates a pillow-blockprovided with the usual vertical jaws, b I), located a distance apart toform a seat for the journal-box, which is divided vertically andcomposed of two similar halves or box-sections, c c, fitted snugly inthe seat of the pillow-block, to allow a limited movement toward eachother, and the outer 5o ends of said box-sections are provided with theflanges d, which fit upon the outer sides and jaws of the pillow-block,and thereby hold the boxes in their seat and prevent longitudinal playof the same.

The opposite meeting edges of the boxes at the top and bottom of thebearing are provided with a series of overlapping intermeshingprojections, n, and corresponding recesses,

o, the projections on the edges of each box being located opposite andentering corre- 6o sponding recesses in the opposite edges of the otherbox, as clearly shown, and the inner faces of the inner series ofprojections are curved to correspond to the curve of the bear ing. Theobject of this overlapping and joining the meeting edges of the boxes isto form a continuous bearing for the shaft and avoid the abruptcontinuous edges and the space between the same, which would result ifthe adjoining edges of the boxes were straight and plane instead offormed into intermeshing overlapping projections in sections.

A cap, 6, fiis over the seat in the pillowblock and over the upper edgesof the jaws b b, and is provided with end flanges to fit upon the outerfaces of said jaws, and said cap carries the wedge-shaped keys f f whichare located between the inner faces of the pillow-block jaws and theouter sides of the boxes, so that as the keys are pushed down the boxeswill be forced in toward each other and the bearing contracted to moresnugly fit the shaft in the same. The cap or top plate at one end is adjustably secured to the jaw b by a set-screw, g, and at the other end isad- 8 5 justably secured to the jawbby a loop, h, secured to or formedwith said jaw and proj ecting upwardly from'the same through the capplate, and said plate is confined upon the same by the wedge or key 1,inserted in the upper end of the loop and bearing on the top of the cap.The key is prevented from slipping by a set-screw, j, extending throughan arm of the loop and engaging the key.

The boxes are held to their seat in the pil- 5 low-block and areprevented from vertical or lateral play by a plate, is, bearing upon thetop of the same between the flanges, and said plate is held in place bytwo or more 'setscrews, 1, extending through the cap. To conroe tractthe bearing to fit the shaft more tightly, loosen the set-screws Z andtighten the setscrew 9, and then drive in the wedge 'i, which operationwill force down the capplate, and with it the keys, thereby forcing theboxes together to fit the shaft. The set-screw j is then tightened tohold the wedge in position, and also the set-screws l, to hold the plateIt firmly upon the boxes.

The key f, carried by the end of the capplate, is preferably secured tosaid cap by a set-screw, g, to hold the same in the proper position.

It is evident that when the boxes are first placed in position theprojections at the adjoining edges of the same do not extend very farinto their respective recesses; but as the bearing is worn away and theboxes are adjusted so as to snugly fit the shaft the projections extendfarther and farther into the recesses, and thus overlap the bottoms ofthe recesses more and more.

What I claim is 1. The combination of a pillow-block having the verticaljaws forming a seat between them, the vertically-divided box located inlsaid seat and consisting of a pair of similar.

box-sections adjustable toward each other, a vertically-adj ustablecap-plate, wedge-shaped keys carried by the same and located between I2. The combination of the pillow-block having vertical jaws forming aseat between 40 them, the vertically-divided box located in said seatand consisting of a pair of similar box-sections adjustable toward eachother and having flanges fitting upon the exterior of the jaws of theblock and having their adjoining edges provided with recesses andintermeshing overlapping projections, whereby a continuous bearing isformed and the boxes can be adjusted to snugly fit the shaft, and acap-plate secured to said jaws in vertical 5o adjustment and providedwith wedge-shaped keys fitting between the jaws and boxes to adjust thesame, substantially as described.

3. A journal box or bearing comprising two sections surrounding andforming the bearing for and adjustable toward each other to snugly fitthe shaft, and having their adjoining edges provided with correspondingseries of recesses and intermeshing projections, whereby a continuousbearing is formed around the shaft and over the joints between thebox-sections, substantially as described.

4. A journal-box comprising two similar sections forming the bearing forthe shaft and joined together to form a continuous bearing by havingtheir adjoining edges provided with series of recesses and correspondingsnugly-fitting intermeshing and overlapping projections, substantiallyas described. I

SAMUEL M. HERBER.

Witnesses:

WILLIAM O. JONES, CHARLES R. OORWINE.

